Tornado Hits Meteorologist's Post
This is a United States news story, published by Science News, that relates primarily to Karen Kosiba news.
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supercell tornadoesScience News
•Squall line tornadoes are sneaky, dangerous and difficult to forecast
85% Informative
Squall line tornadoes are ephemeral and often evade detection, forming and dying in the interludes between the scans of most radar systems.
They are generally less intense than supercell tornadoes, but that doesn’t mean they’re not dangerous, says atmospheric scientist Karen Kosiba of the University of Illinois Urbana-Champaign .
The southeastern United States is particularly vulnerable to squall line twisters.
Squall line tornadoes appear to be more common than researchers previously thought.
They may be more fierier than previously thought, says PERiLS researcher.
Researchers have observed that they tend to be wider than supercell tornadoes; perhaps that’s because many house subvortices are in a tornado.
Researchers used lidar instruments to monitor the atmosphere in the hours before a squall line’s arrival.
At different levels of the lower atmosphere, vertical wind shear grew larger, inducing more rotation.
Data suggest certain wind structures may be lining up ahead of tornadic mesovortices, researchers say.
More actionable findings may emerge in coming years .
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